TRIS (Transportation Research Information Service) – Access is freely available to all. Bibliographic database of published transportation-related research including technical reports, books, conference proceedings and journal articles. Many links go to full-text sources.

TRoPHI, Trials Register of Promoting Health Interventions – Access is freely available to all. A registry of randomized and non-randomized controlled trials of public health and health promotion interventions. TRoPHI is hosted by the Evidence for Policy and Practice Information and Coordinating Centre (EPPI-Centre).